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Enzymatic activity measured by microcalorimetry in soil amended with organic residues Rev. Bras. Ciênc. Solo
Cenciani,Karina; Santos Freitas,Sueli dos; Critter,Silvana Auxiliadora Missola; Airoldi,Claudio.
Enzymatic activity is an important property for soil quality evaluation. Two sequences of experiments were carried out in order to evaluate the enzymatic activity in a soil (Rhodic Eutrudox) amended with cattle manure, earthworm casts, or sewage sludges from the municipalities of Barueri and Franca. The activity of commercial enzymes was measured by microcalorimetry in the same soil samples after sterilization. In the first experiment, the enzyme activities of cellulase, protease, and urease were determined in the soil samples during a three month period. In the second sequence of experiments, the thermal effect of the commercial enzymes cellulase, protease, and urease on sterilized soil samples under the same tretaments was monitored for a period of 46...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Extracellular enzymes; Soil microorganisms; Thermal effect.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000400010
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